FN Archimer Export Format
PT J
TI A 62 kyr geomagnetic palaeointensity record from the Taymyr Peninsula, Russian Arctic
BT 
AF Scheidt, Stephanie
   Lenz, Matthias
   Egli, Ramon
   Brill, Dominik
   Klug, Martin
   Fabian, Karl
   Lenz, Marlene M.
   Gromig, Raphael
   Rethemeyer, Janet
   Wagner, Bernd
   Federov, Grigory
   Melles, Martin
AS 1:1;2:1;3:2;4:3;5:4;6:4,5;7:1;8:1;9:1;10:1;11:6,7;12:1;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:;12:;
C1 Institute of Geology and Mineralogy, University of Cologne, 50674, Germany
   Central Institute for Meteorology and Geo-dynamics (ZAMG), Vienna, 1190, Austria
   Institute of Geography, University of Cologne, Cologne, 50674, Germany
   Geological Survey of Norway (NGU), N-7491 Trondheim, Norway
   Department of Geoscience and Petroleum, Norwegian University of Science and Technology, Norway
   Institute of Earth Sciences, St. Petersburg State University, Russia
   Arctic and Antarctic Research Institute, St. Petersburg, Russia
C2 UNIV COLOGNE, GERMANY
   ZAMG, AUSTRIA
   UNIV COLOGNE, GERMANY
   GEOL SURVEY NORWAY, NORWAY
   UNIV NORWEGIAN, NORWAY
   UNIV ST PETERSBURG STATE, RUSSIA
   ISTC, RUSSIA
IN DOAJ
TC 0
UR https://archimer.ifremer.fr/doc/00697/80946/84915.pdf
   https://archimer.ifremer.fr/doc/00697/80946/91602.pdf
LA English
DT Article
CR IMAGES 1-MD101
BO Marion Dufresne
AB This work represents the first palaeomagnetic study carried out on the sedimentary record of lake Levinson-Lessing, which is the deepest lake in northern Central Siberia. Palaeomagnetic analyses were carried out on 730 discrete samples from the upper 38 m of the 46 m-long core Co1401, which was recovered from the central part of the lake. Alternating field demagnetisation experiments were carried out to obtain the characteristic remanent magnetisation. The relative palaeointensity is determined using the magnetic susceptibility, the anhysteretic remanent magnetization and the isothermal remanent magnetization for normalization of the partial natural remanent magnetization. The chronology of Co1401 derives from accelerated mass spectrometer radiocarbon ages, optically stimulated luminescence dating, and correlation of the relative palaeointensity of 642 discrete samples with the GLOPIS-75 reference curve. This study focuses on the part >10 ka but although includes preliminary results for the upper part of the core. The record includes the geomagnetic excursions Laschamps and Mono Lake, and resolves sufficient geomagnetic features to establish a chronology that continuously covers ~62 ka. The results reveal continuous sedimentation and high sedimentation rate between 45 and 95 cm ka−1. High lock-in depths are suggested from the low variability of the magnetic record compared to data sets of reference records with lower sedimentation rate. Although the horizontal component of the characteristic remanent magnetization can only be used with caution because Co1401 was cored without core segment overlap, the magnetic record of Co1401 is the only high-resolution record of relative palaeointensity and palaeosecular variations from the Arctic tangent cylinder going back to ~62 ka. 
PY 2022
SO Geochronology
SN 2628-3719
PU Copernicus GmbH
VL 4
IS 1
BP 87
EP 107
DI 10.5194/gchron-2021-12
ID 80946
ER

EF